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Which explosion-proof level is higher between exdiibt4 and exdiict4 (how to distinguish the explosion-proof level)
Release time: 2023-02-03
The explosion-proof grade is exdiict4, which is called ct4 explosion-proof motor.
The available range of CT is wide. CT is the explosion-proof level of acetylene and hydrogen. If there are gases such as acetylene and hydrogen in the environment, a CT-level explosion-proof motor should be used.
The explosion-proof grade is exdiibt4, which is called bt4 explosion-proof motor
BT cannot be used in the operation place of acetylene gas, it is only a medium-level explosion-proof definition.
Therefore, the explosion-proof level of CT4 is higher than that of BT4.
Explosion-proof motors can be divided into two types: Class I and Class II. Class I is suitable for operating motor equipment in coal mines. Class II is used for factory explosion-proof motor equipment. Class I explosion-proof motor equipment is specially used in coal mines. Downhole gas methane, so Class I electrical equipment is no longer classified. Class II explosion-proof electrical equipment is divided into three levels (ie IIA, IIB, IIC) according to its large safety gap or small ignition current ratio suitable for gas mixtures.
Hazard level: IIC>IIB>IIA
Equipment security: IIC>IIB>IIA
("high level" covers "low level")
